Cited by 111Mobile Health and mHealth ApplicationsPhysical Activity and HealthContext-Aware Activity Recognition Systems

Evaluating Machine Learning–Based Automated Personalized Daily Step Goals Delivered Through a Mobile Phone App: Randomized Controlled Trial

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Zhou, Mo, Fukuoka, Yoshimi, Mintz, Yonatan, Goldberg, Ken, Kaminsky, Philip, Flowers, Elena, Aswani, Anil·2018·JMIR mHealth and uHealth

Abstract

BACKGROUND: Growing evidence shows that fixed, nonpersonalized daily step goals can discourage individuals, resulting in unchanged or even reduced physical activity. OBJECTIVE: The aim of this randomized controlled trial (RCT) was to evaluate the efficacy of an automated mobile phone-based personalized and adaptive goal-setting intervention using machine learning as compared with an active control with steady daily step goals of 10,000. METHODS: In this 10-week RCT, 64 participants were recruited via email announcements and were required to attend an initial in-person session. The participants were randomized into either the intervention or active control group with a one-to-one ratio after a run-in period for data collection. A study-developed mobile phone app (which delivers daily step goals using push notifications and allows real-time physical activity monitoring) was installed on each participant's mobile phone, and participants were asked to keep their phone in a pocket throughout the entire day. Through the app, the intervention group received fully automated adaptively personalized daily step goals, and the control group received constant step goals of 10,000 steps per day. Daily step count was objectively measured by the study-developed mobile phone app. RESULTS: The mean (SD) age of participants was 41.1 (11.3) years, and 83% (53/64) of participants were female. The baseline demographics between the 2 groups were similar (P>.05). Participants in the intervention group (n=34) had a decrease in mean (SD) daily step count of 390 (490) steps between run-in and 10 weeks, compared with a decrease of 1350 (420) steps among control participants (n=30; P=.03). The net difference in daily steps between the groups was 960 steps (95% CI 90-1830 steps). Both groups had a decrease in daily step count between run-in and 10 weeks because interventions were also provided during run-in and no natural baseline was collected. CONCLUSIONS: The results showed the short-term efficacy of this intervention, which should be formally evaluated in a full-scale RCT with a longer follow-up period. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02886871; https://clinicaltrials.gov/ct2/show/NCT02886871 (Archived by WebCite at http://www.webcitation.org/6wM1Be1Ng).

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Research works printed but not linked: 3

  1. [25]Pila E Tignor S Gilchrist J Sabiston C Fombelle P Sirianni N Self-conscious emotions in response to physical activity success and failure: findings from a global 112-day pedometer intervention Journal of Exercise, Movement, and Sport (SCAPPS refereed abstracts repository) 2016 48 1
  2. [47]Aswani A Kaminsky P Mintz Y Flowers E Fukuoka Y SSRN 2016 2018-01-16 Behavioral modeling in weight loss interventions https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2838443
  3. [59]Verbeke G Linear mixed models for longitudinal data 1997 New York Springer

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Authors
Zhou, M., Fukuoka, Y., Mintz, Y., Goldberg, K., Kaminsky, P., Flowers, E., & Aswani, A.
Affiliations
  • University of California, Berkeley (US)
  • University of California, San Francisco (US)
Corresponding author
Aswani, Anil
Venue
JMIR mHealth and uHealth
Published
2018-01-25
Volume
6
Issue
1
Pages
e28
ISSN
2291-5222 (ISSN-L)
OpenAlex
W2785014992
Cited by
111
References
81
Citations by year
2026: 16 · 2025: 15 · 2024: 13 · 2023: 15 · 2022: 12 · 2021: 15 · 2020: 12 · 2019: 8 · 2018: 4 · 2016: 1
FWCI
14.89
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • JMIR mhealth and uhealth (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Center for Information Technology Research in the Interest of Society
  • National Institutes of Health (KL2TR000143)
  • Philippine-California Advanced Research Institutes
  • National Heart, Lung, and Blood Institute (R01HL104147)
  • National Institute of Nursing Research (K24NR015812)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Health Professions › General Health Professions › Mobile Health and mHealth Applications
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
Keywords
machine learning, mobile phone app, physical activity, step count, 10,000 steps goal, push notifications, real-time activity monitoring, automated intervention, physical activity promotion, smartphone-based intervention, sedentary behavior, intervention efficacy, active control groups

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